3.7V 40mAh 301120 Lipo Battery Rechargeable Lithium Polymer ion Battery Pack with JST Connector

Need a battery to fit in small space tried a few this one fit

I have two cheap (~$5) MP3 players (had many more) which batteries very fast go Kaputt, so I removed the dead battery and purchased this one...after initial contact touching it shows my MP3 works fine!! :-) I will cut off the plug and hardwire that kaboodle.1 day later - DONE!Second picture shows new battery connected..not very professional, but good enough to do the job - the display is lit, music is playing....I couldn't ask for more :-)

I had to replace the worn out batteries in my Rexing car cameras. These little guys are wonderful, and if you’re not afraid of a little soldering, will have you up and running in no time. Mine even came with enough of a charge to power the cameras right away, recharged quickly after a short drive and haven’t given me a lick of trouble.Highly recommended. 🙂

Ordered as a replacement for the soldered lipo battery in my 2014 Acura MDX keyfob.I soldered this one in and it fit like a glove.

Must be soldered in but fits and works!

worked perfect for my Epson 3D glasses.

Funcionó perfectamente... para los lentes Epson 3D para proyector 5040UB

It's a small battery And it works. A+